Tile-mold.



BATBNTED4 JULYAz, 1907.

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TILE MOLD.'v

APPLICATION FILED sBPT.17.'19oe.

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EATBNTED JULY 2, 1907.

No. 858.638-x J. J. SWENSON.

- TILE Mom APPLIUATIQN FILED SERT. 17, 1906.

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JOI-IN J. SWENSON, OF ROSWELL, TERRITORY OF NEW MEXICO.

TILE-MOLD.

Specification of Letters Patent.

Patented July 2, 1907.

Application filed September 17, 1906. Serial N0- 334,909.

To all whom it may concern:

Be it known that I, .ToHN J. SwENsoN, a citizen of the United States, residing at Roswell, in the county of Chaves, Territory of New Mexico, have invented certain new and useful Improvements in Tile-Molds; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in tile molds.

The object of the invention is to provide a mold of this character having a novel form of expansible shell and a contractible core.

A further object is to provide novel means whereby the shell of the mold may be locked in an operative position while the tile is being formed, and means whereby shell may be quickly expanded to permit the removal of the same from the finished tile, novel means being also provided whereby the core may be quickly contracted to permit the removal of the same from the finished tile.

`With the above and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts, as will be hereinafter described and claimed.

In the accompanying drawingsz-Figure I is a side view of the mold complete Fig. 2 is a longitudinal vertical sectional view of the same; Fig. is a top plan view with the lling attachments removed; Fig. 4 is a horizontal sectional View ofthe mold; and Fig. 5 is a detail view of 'the ring for finishing or smoothing the top of the tile.

Referring more particularly to the drawings, l denotes the mold which consists of an outer shell 2 formed of a single sheet of spring metal bent into substantially cylindricalv form with its ends overlapping, as shown. Secured to the outer side of one of the overlapping ends ofthe shell 2 are bearing brackets or loops 3 while on the like side of the other end of the shell 2 is secured bearing brackets or loops 4, said brackets or loops 4 being disposed at points above and below and between the bearing brackets 3 and being adapted to project outwardly and beyond or past the brackets 3, when the shell 2 is in a closed position.

.lournaled in the bearing brackets 3 and 4 is a cranked shaft 5, the cranks of which project in opposite directions, the cranks projecting in one direction being connected to the brackets 3, while the cranks projecting in the opposite direction are connected to the brackets 4, so that when the shaft 5 is turned in one direction or the other, the ends of the shell 2 are drawn together or forced apart, thereby contracting or expanding it. The upper end of the shaft 5 is provided with a right angularly projecting curved handle 6 which, when the shaft is turned to contract the shell 2, is adapted to engage with the side of the shell and be engaged by a locking bar or lever 7 pivotally mounted on the side of the Wall 2, as shown. By this means, the crank shaft 5 is locked in position to hold the shell in a contracted position during the process of forming the tile.

Adapted to be arranged within the shell 2 is a core 8, said core being formed of a single piece of spring metal bent into a substantially cylindrical formvwith its ends overlapping, as shown.

Arranged within the core 8 near the upper and lower ends oi the same, are disks or plates 9, to which are pivotally connected the inner ends of radially disposed toggle links l0, the outer ends of which are pivotally` connected to radially projecting brackets l2 secured to the inner wall of the shell, preferably at diametrically opposite points. The disks or plates 9 are connected ,A together and held apart bymeans of'tie-rodsv 13, on which are screwed clamping nuts 14 to engage the inner and outer sides of said disks, as shown. The upper ends of the tie-rods I3 project above the upper plate 9 and the top of the coreand are connected by a bailshaped handle l5 secured thereto by clamping nuts 16.

Passing loosely through the disks 9 is a bolt 17, the lower end of which is adapted to engage with the iioor and thereby limit the downward movement of the disks. The head 18 of the bolt is above the top disk and the nut l9'engages with the lower face of the bottom disk and varies the distance between the end of the bolt therefrom, thereby regulating, or adjusting the size, or diameter of the core through the movement oi the toggles 10. For instance, in Fig. 2 of the drawings, the nut is shown so close to the end of the bolt that when said end rests upon the floor the toggles are horizontal, or substantially in the plane of the plates, which causes the core to be the largest, or with its greatest diameter. By moving the nut upward on the bolt it is evident that the end of the bolt will strike the fioor before the plate is moved down far enough to place the toggles in a horizontal position, thereby decreasing the size of the core by shortening its diameter. In this manner the normal or operative size of the core can be varied to any desired extent within the limit of the toggles, the only requisite being that sufiicient play, or movement of the toggles be reserved for decreasing the diameter of the core sufficiently to withdraw it from the finished tile. By screw threading the upper ends of the rods 13 far enough and using the two sets of nuts on each of them the upper plate 9 and the handle I5 can be easily secured thereon so as to be adjusted if desired, or removed in case of an accident, or for the removal of any of the parts.

Adapted to be placed on top of the core 8 when the mold is being filled is a conical-shaped deector or cap 2O which will prevent the material of which tiles are formed, from enteringthe core and will also assist in guiding said material into the space between the core and the outer wall of the mold.

Arranged on the upper end of the shell 2 is a funnel 2l, into which the plastic material is placed and by Which the same is directed into the molding space. After suflicient material has been placed in the mold to till the same, the funnel 2l and deector 20 are removed and the upper ends oi the tiles smoothed ofi, after which a inishing or smoothing ring 22 is placed on the upper end of the molded tile until the material has become set or hardened. After the tile has become suiiciently hardened, the shell oi the mold is expanded and the vantages of this invention, as detined by the appended claims.

Having thus described my invention, what l claim as new and desire to secure by Letters-Patent, is zl. ln a tile mold, an exterior shell, and a collapsible Core, said core comprising a cylindrical sheet ot nietal` :i bolt axially arranged therein having a nut adjustably mounted on its towel' end, two disks loosely mounted on the bolt and rigidly spaced apart, toggles secured to the edges of the disks and te the interior ot` the core. and a handle at the upper end ol` the core.

2. ln a tile mold, an exterior shell. and a collapsible core, said core comprising a cylindrical sheet ot" inetal. a bolt axially arranged therein having a nut, adjustably mounted on its lower end. two disks loosely inounted on' the bolt, two tie rods through Isaid dislis having' their ends screw threaded, three pairs o1' nuts on eat-li rod, two at the top and one at the bottoni, two ot said pairs engaging with said disks, and a handle upon the upper ends ol` said rods with its ends between the top pairs ot` nuts.

In testimony whereof l have hereunto set in v hand in presence of two subscribing witnesses.

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